e-tutor.com - Online tutoring, learning, and homeschooling resources      Home    Enroll    Tour    Contact Us    Graphing Calculator         Dictionary Home    Index    About   

Definition of 'alert'


  1. condition of heightened watchfulness or preparation for action; "bombers were put on alert during the crisis"
       Synonyms: qui vive
  2. a warning serves to make you more alert to danger
       Synonyms: alerting
  3. an automatic signal (usually a sound) warning of danger
       Synonyms: alarm warning signal alarum


  1. warn or arouse to a sense of danger or call to a state of preparedness; "The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries"
       Synonyms: alarm


  1. very attentive or observant; "an alert and responsive baby is a joy"; "caught by a couple of alert cops"; "alert enough to spot the opportunity when it came"; "constantly alert and vigilant, like a sentinel on duty"
       Antonyms: unalert
  2. mentally responsive; "an alert mind"
  3. not unconscious; especially having become conscious; "the patient is now awake and alert"
       Synonyms: awake
  4. (usually followed by `to') showing acute awareness; mentally perceptive; "alert to the problems"; "alive to what is going on"; "awake to the dangers of her situation"; "was now awake to the reality of his predicament"
       Synonyms: alive awake

Get this dictionary without ads as part of the e-Tutor Virtual Learning Program.